1 // Copyright 2016 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
5 //go:build linux && (mips || mipsle)
12 _SYS_setgroups = SYS_SETGROUPS
14 _SYS_faccessat2 = 4439
15 _SYS_pidfd_send_signal = 4424
19 func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
21 //sys Dup2(oldfd int, newfd int) (err error)
22 //sys Fchown(fd int, uid int, gid int) (err error)
23 //sys fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
24 //sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
25 //sysnb Getegid() (egid int)
26 //sysnb Geteuid() (euid int)
27 //sysnb Getgid() (gid int)
28 //sysnb Getuid() (uid int)
29 //sys Lchown(path string, uid int, gid int) (err error)
30 //sys Listen(s int, n int) (err error)
31 //sys Pause() (err error)
32 //sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
33 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
34 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
35 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
36 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
37 //sys Setfsgid(gid int) (err error)
38 //sys Setfsuid(uid int) (err error)
39 //sys Shutdown(fd int, how int) (err error)
40 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
42 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
43 //sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
44 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
45 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
46 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
47 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
48 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
49 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
50 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
51 //sysnb socket(domain int, typ int, proto int) (fd int, err error)
52 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
53 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
54 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
55 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
56 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
57 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
58 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
60 //sysnb InotifyInit() (fd int, err error)
61 //sys Ioperm(from int, num int, on int) (err error)
62 //sys Iopl(level int) (err error)
64 //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error)
65 //sysnb Gettimeofday(tv *Timeval) (err error)
66 //sysnb Time(t *Time_t) (tt Time_t, err error)
67 //sys Utime(path string, buf *Utimbuf) (err error)
68 //sys utimes(path string, times *[2]Timeval) (err error)
70 //sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
71 //sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
72 //sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
73 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
75 func Fstatfs(fd int, buf *Statfs_t) (err error) {
76 _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
83 func Statfs(path string, buf *Statfs_t) (err error) {
84 p, err := BytePtrFromString(path)
88 _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
95 func Seek(fd int, offset int64, whence int) (off int64, err error) {
96 _, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0)
103 func setTimespec(sec, nsec int64) Timespec {
104 return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
107 func setTimeval(sec, usec int64) Timeval {
108 return Timeval{Sec: int32(sec), Usec: int32(usec)}
111 //sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
113 func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
114 page := uintptr(offset / 4096)
115 if offset != int64(page)*4096 {
118 return mmap2(addr, length, prot, flags, fd, page)
121 const rlimInf32 = ^uint32(0)
122 const rlimInf64 = ^uint64(0)
124 type rlimit32 struct {
129 //sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
131 func Getrlimit(resource int, rlim *Rlimit) (err error) {
132 err = prlimit(0, resource, nil, rlim)
138 err = getrlimit(resource, &rl)
143 if rl.Cur == rlimInf32 {
146 rlim.Cur = uint64(rl.Cur)
149 if rl.Max == rlimInf32 {
152 rlim.Max = uint64(rl.Max)
157 //sysnb setrlimit1(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
159 func setrlimit(resource int, rlim *Rlimit) (err error) {
160 err = prlimit(0, resource, rlim, nil)
166 if rlim.Cur == rlimInf64 {
168 } else if rlim.Cur < uint64(rlimInf32) {
169 rl.Cur = uint32(rlim.Cur)
173 if rlim.Max == rlimInf64 {
175 } else if rlim.Max < uint64(rlimInf32) {
176 rl.Max = uint32(rlim.Max)
181 return setrlimit1(resource, &rl)
185 func rawSetrlimit(resource int, rlim *Rlimit) Errno {
186 _, _, errno := RawSyscall6(SYS_PRLIMIT64, 0, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0, 0, 0)
192 if rlim.Cur == rlimInf64 {
194 } else if rlim.Cur < uint64(rlimInf32) {
195 rl.Cur = uint32(rlim.Cur)
199 if rlim.Max == rlimInf64 {
201 } else if rlim.Max < uint64(rlimInf32) {
202 rl.Max = uint32(rlim.Max)
207 _, _, errno = RawSyscall(SYS_SETRLIMIT, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0)
211 func (r *PtraceRegs) PC() uint64 { return uint64(r.Regs[64]) }
213 func (r *PtraceRegs) SetPC(pc uint64) { r.Regs[64] = uint32(pc) }
215 func (iov *Iovec) SetLen(length int) {
216 iov.Len = uint32(length)
219 func (msghdr *Msghdr) SetControllen(length int) {
220 msghdr.Controllen = uint32(length)
223 func (cmsg *Cmsghdr) SetLen(length int) {
224 cmsg.Len = uint32(length)